Key figures
Massachusetts advisory
2026, with sources
Credits and the surtax
Massachusetts offers a research credit against the corporate excise. It is not refundable for a typical software company: credits beyond the year’s liability carry over for 15 years, and credits limited by the 75% rule carry over indefinitely. For a pre-profit startup, it is a deferred asset rather than cash, and it only pays off once the company pays more than the $456 minimum.
For founders and early employees, the bigger state-specific number is the 4% surtax on taxable income over $1,107,750 in 2026, on top of the 5% personal income tax. Long-term capital gains count toward the threshold, so a liquidity event or a large secondary can trigger it in a single year. How Massachusetts treats gain on qualified small business stock is set by DOR’s personal income tax rules; check them before assuming the federal § 1202 result carries over.
The contractor question
Massachusetts’s independent contractor law is among the strictest in the country. Under the three-part ABC test, a worker is an employee unless the work is free from the company’s control, outside its usual course of business, and the worker is independently established in that trade. A software startup paying a full-time developer as a 1099 contractor fails the second prong on its face.
Misclassification here is enforced by the Attorney General and carries wage-law liability, not just back taxes. It also interacts with PFML, where 1099 workers can count toward coverage under DFML’s guidance.
Where founders go wrong in Massachusetts
A typical case: a three-person company in Somerville hires its first two engineers. Before the first paycheck it registers with DOR for withholding, DUA for unemployment, and DFML for PFML; posts the earned sick time notice; and decides, with the ABC test in mind, whether its contract designer is still a contractor.
- Paying contractors who do core work and assuming the federal test applies.
- Missing the final paycheck rule: a fired employee is paid in full on the last day.
- Forgetting PFML registration with DFML, which is separate from DOR and DUA.
- Treating SaaS as non-taxable: prewritten software is taxable however it is accessed.
- Filing the Secretary of the Commonwealth annual report late; it is due 2½ months after year end.
The federal baseline
This page covers what Massachusetts adds. The federal rules underneath it apply here too.
Common questions
Will the millionaire’s surtax hit a founder’s share sale?
Possibly. The 4% surtax applies to taxable income above $1,107,750 for 2026, and long-term capital gains count toward it. A founder who sells shares in a year when other income is modest can still cross the threshold on the gain alone, so the timing of a secondary sale matters.
Is there a Massachusetts R&D credit for startups?
Yes, with limits. Massachusetts has a research credit against the corporate excise; credits above the year’s liability carry over for 15 years, and those disallowed by the 75% rule carry over indefinitely. It does not pay cash to a loss-making company the way some states’ exchanges do.
Advisory next door
- CTConnecticut advisoryConnecticut lets small companies exchange unused R&D credits for 65% of their value in cash, and offers angel investors a 25% credit. The surtax and NOL cap catch forecasts.
- NHNew Hampshire advisoryNew Hampshire’s R&D credit is 10% of incremental in-state research wages, capped at $50,000 per company and drawn from a $7 million pool. The bigger planning item is the BET.
- NYNew York advisoryNew York’s incentives are refundable but by application, through Empire State Development. The 2026 budget kept the 7.25% cliff rate, decoupled from R&E expensing, and left QSBS alone.
- RIRhode Island advisoryRhode Island’s research credit runs 22.5% then 16.9%, now with a 15-year carryover, but NOLs expire after five years. The two clocks are what to model.
- VTVermont advisoryVermont’s R&D credit is 27% of the federal credit for Vermont work, carried forward 10 years, and the state publishes who claims it. Three recent rule changes trip up older advice.
Founder guides on this
- R&D taxThe R&D tax credit and Section 174A for startupsEngineering salaries can earn a federal R&D credit against payroll tax, and Section 174A lets you deduct US research again. What qualifies, what to track.
- EquityStock options, 409A valuations and vesting for startupsHow option strike prices are set by a 409A valuation, how vesting and the cliff work, and why ASC 718 makes every grant an expense on your P&L.
- PeopleContractor or employee? Classification for startupsContractor or employee depends on control, not the contract. The IRS test, state rules, 1099s, payroll registration and the cost of getting it wrong.
- ComplianceFirst-year compliance calendar for a Delaware C-corpDelaware franchise tax, 1099s, the federal return, payroll filings, state annual reports and sales tax: the deadlines a young C-corp misses most, by month.
More of the Massachusetts guide
- AccountingAccounting and state tax in MassachusettsCorporate tax, conformity to federal rules, apportionment and what it does to your books
- ReceivablesReceivables and sales tax in MassachusettsSales tax registration, economic nexus, whether SaaS is taxable, and collecting from customers
- PayablesPayables and contractors in MassachusettsPaying vendors and contractors: 1099 filing, use tax, contractor tests and withholding
- PayrollPayroll taxes and employer rules in MassachusettsWithholding, unemployment insurance, paid leave, minimum wage and the rules on paydays
- ComplianceCompliance and filings in MassachusettsRegistering to do business, annual reports, franchise tax and the filing calendar
Sources
Checked against each agency’s own page on . Rates and thresholds change, usually on January 1.
General information for US companies, not tax, legal or accounting advice for yours. Rules and thresholds change; confirm the specifics with a CPA or the agency before you act on them.